Got this pack over a year ago and was finally able to take it on an overnight trip this past weekend on the AT near Roanoke Va. Pack was well balanced even when extended to 55 L. good pocket storage and lots of options on the outside of the pack to tie things on. shoulder adjustment straps for me were great as they allow you to balance the load to your preference. love the zippered entry on the side for access to items down in your pack without having to go through the top. 8 miles into the second day and the pack still felt great. as mentioned by other posts, main con is lack of instructions on the details of the pack. you can tell a lot of thought went into the design of the pack, just wish it was better communicated. looking forward to my next trip with this pack.